Name
- Marriott, William Frederick, Lieutenant-General CSI1
- Massey, William Nathaniel, MP1
- Maunder, Frederick, woolstapler of Barnstaple1
- May, Thomas Erskine, 1st Baron Farnborough, clerk of the House of Commons, 1815-18861
- McNeill, John Carstairs, Major-General VC, GCVO1
- Melhuish, Thomas Bremridge, Rector of Poughill1
- Mends, William Robert, Admiral GCB1
- Meysey-Thompson, Harry Stephen, 1st Baronet1
- Miller, D, son of Colonel D S Miller1
- Milman, Robert, Bishop of Calcutta1
- Milward, Victor, MP1
- Mitford, Percy, diplomatist1
- Moresby, Fairfax, Knight, naval officer, c 1786-18771
- Morgan, William, solicitor of Birmingham1
- Morley, John, Viscount Morley of Blackburn, statesman, 1838-19231
- Morris, Francis Orpen, Reverend naturalist1
- Munro-Ferguson, Ronald Craufurd, Viscount Novar, Governor-General of Australia, 1860-19341
- Munzinger, Johann Albert Werner, Swiss linguist and traveller1
- Murchison, Roderick Impey, 1st Baronet, geologist, 1792-18711
- Murray, Patrick Joseph, barrister of Dublin1